A glabrous, glaucous, annual or perennial herb. Leaves opposite or whorled, linear to narrowly obovate, 4-14 mm long; stipules triangular, broadly hyaline-margined to hyaline with a green midrib area, small. Flowers in many-flowered usually dichasial or some monochasial, pedicellate, bracteate; bracts small, scarious with a green midrib, ovate, ciliolate. Sepals ovate-elliptic, 2-3 mm, green with broad scarious margins. Petals about as long as or a little longer than sepals, white to pinkish, broadly ovate to cordate limb. Capsul subglobose.